The value of c that makes the trinomial a perfect square is 180.25.
Trinomial perfect squares:A trinomial perfect square is a trinomial expression that can be written in the form: (a + b)² = a²+ 2ab + b² Where a and b are constants.
To determine if a trinomial is a perfect square, we can check if it can be written in this form.
Let's take a perfect square (x - k)² where k is some constant.
Expanding (x - k)², we get:
x² - 2kx + k² ---- (1)
Compare (1) with x² −19x + c
=> -2k = -19
=> k² = c
From the first equation, we can solve for k:
k = 19/2
Substituting this into the second equation, we can solve for c:
c = k² = (19/2)² = 90.25
Therefore,
The value of c that makes the trinomial a perfect square is 180.25.
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Mona has 3200 yards of fencing to enclose a rectangular area. find the dimensions of the rectangle that maximize the enclosed area. what is the maximum area?
Maximum area enclosed by Mona for the fencing is 640,000 square yards. And the dimensions( length and width ) of the rectangle to enclosed maximum area are 800 yard each.
As given in the question,
Perimeter of the rectangular area encloses for fencing = 3200 yards
Let 'x' and 'y' be the length and width of the rectangle.
2( x + y ) = 3200
⇒ x + y = 3200/2
⇒y = 1600 - x
Area of rectangular field 'A' = xy
⇒ A = x ( 1600 - x )
⇒ A = 1600x - x²
Differentiate both the side of the equation we get,
dA/dx = 1600 - 2x
For Maximum Area dA/dx = 0
1600 -2x =0
⇒ 2x = 1600
⇒ x= 800 yards
Now, y = 1600 - 800
= 800 yards
Maximum area = (800) (800)
= 640,000 square yards
Therefore, the dimensions of the rectangular area are 800yards each and its maximum area is equal to 640,000 square yards.
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(Excel Function)What excel function is used when deciding rejecting or failing to reject the null hypothesis?
The Excel function used when deciding to reject or fail to reject the null hypothesis is the T.TEST function.
This function is used to calculate the probability of obtaining the observed results or more extreme results, assuming that the null hypothesis is true. If the probability, also known as the p-value, is less than the significance level, typically 0.05, the null hypothesis is rejected, and it is concluded that there is sufficient evidence to support the alternative hypothesis.
Otherwise, if the p-value is greater than the significance level, the null hypothesis is not rejected, and it is concluded that there is not enough evidence to support the alternative hypothesis.
The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming that the null hypothesis is true. If the p-value is less than or equal to the level of significance (alpha) chosen for the test, typically 0.05 or 0.01, then the null hypothesis is rejected in favor of the alternative hypothesis. If the p-value is greater than the chosen alpha level, then the null hypothesis is not rejected.
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help me on this question!! new here!!
The constant of proportionality for Tables 1,2,3,4,5 and 6 are 7, 3, 0.25, 14, 5/12 and 7/30 respectively
How to calculate the constant of proportionality?What is constant of proportionality?
The constant of proportionality is the constant value of the ratio between two proportional quantities.
In this case, the constant of proportionality (k) is the ratio of y and x
i.e. k = y/x
To complete the table:
Note: k = y/x, y = kx and x = y/k
Table1:
x | 3 | 7 | 8 | 10 |
y | 21 | 49 | 56 | 70 |
constant of proportionality = 21/3 = 7
Table 2:
x | 4 | 24 | 15 | 3 |
y | 12 | 8 | 45 | 9 |
constant of proportionality = 24/8 = 3
Table 3:
x | 12 | 36 | 8 | 48 |
y | 3 | 9 | 2 | 12 |
constant of proportionality = 12/48 = 0.25
Table 4:
x | 7 | 11 | 5 | 2 |
y | 98 | 154 | 70 | 28 |
constant of proportionality = 70/5 = 14
Table 5:
x | 24 | 12 | 36 | 108 |
y | 10 | 5 | 15 | 45 |
constant of proportionality = 5/12
Table 6:
x | 60 | 1 | 0 | 30 |
y | 14 | 7/30 | 0 | 7 |
constant of proportionality = 7/30
Therefore, the corresponding values of the constant of proportionality for Tables 1, 2, 3, 4, 5 and 6 are 7, 3, 0.25, 14, 5/12 and 7/30
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Find the exact area of the circle
Write your answer in terms of pi
Answer:
196π (square metres)
Step-by-step explanation:
area of circle = π r²
= π (14)²
= 196π (square metres)
Suppose an Inspector at a shipping port is checking for counterfeit goods. The Inspector confronts an Owner of three shipping containers. The containers are labeled A, B, and C. Both the Inspector and Owner know that one of the three shipping containers has counterfeit goods. The Inspector does not know which container has the counterfeit goods but knows that each container has the same chance of containing the counterfeit goods. Prior to the Inspectors arrival, the owner randomly chose one of the containers to place the counterfeit goods in. Per company policy, the Inspector can only request that the Owner open one of the containers to inspect. If the Inspector successfully finds the counterfeit items they receive a payoff of 100 and if they fail to find the counterfeit items they receive a payoff of -100. The Owner receives a payoff of 100 if the Inspector does not find the counterfeit goods and a payoff of -100 if the Inspector finds the items. Suppose the Inspector chooses container B. However, before opening container B, the Owner instead opens container A. The Owner shows the Inspector that inside container A there are no counterfeit items. The Owner then asks the Inspector if they would like to request that the Owner open container C instead of A. Use game theory to show whether the Inspector would maximize their chance of finding counterfeit items by opening container B or switching to container C. What is the expected payoff for both the Owner and Inspector for each choice?
Regardless of what the Inspector chooses, the Owner's expected payoff is the same (33.33). The Owner does not have a better option than waiting for the Inspector to choose container B.
This problem can be modeled as a game of incomplete information. The Inspector and Owner are players in the game, and each has two possible strategies: either choose container B, or switch to container C. The payoffs for each player depend on the strategy they choose and which container contains the counterfeit goods.
To solve this game, we can use backward induction. We start by considering the final decision point: whether to switch to container C after seeing that container A does not contain the counterfeit goods. Let's consider the two cases:
If the counterfeit goods are in container B, then the Inspector knows that container C also does not have the counterfeit goods. In this case, the payoff for choosing container B is 100 (if they find the counterfeit goods) or -100 (if they do not).
If the counterfeit goods are in container C, then the Inspector knows that container B does not have the counterfeit goods. In this case, the payoff for switching to container C is 100 (if they find the counterfeit goods) or -100 (if they do not).
Since the Inspector does not know which container has the counterfeit goods, they should choose the strategy with the higher expected payoff. To calculate the expected payoffs, we need to consider the probability that the counterfeit goods are in each container. Since the owner chose one container at random, each container has a 1/3 chance of containing the counterfeit goods.
If the Inspector chooses container B, the expected payoff is:
Expected payoff (choose container B) = (1/3) * 100 + (2/3) * (-100) = -33.33
If the Inspector switches to container C, the expected payoff is:
Expected payoff (switch to container C) = (1/3) * 100 + (2/3) * (-100) = -33.33
Therefore, regardless of what the Inspector chooses, their expected payoff is the same (-33.33). This means that the Inspector does not have a better option than choosing container B, and switching to container C does not improve their chances of finding the counterfeit goods.
For the Owner, if the Inspector chooses container B, then the Owner's expected payoff is:
Expected payoff (Inspector chooses container B) = (1/3) * (-100) + (2/3) * 100 = 33.33
If the Inspector switches to container C, then the Owner's expected payoff is:
Expected payoff (Inspector switches to container C) = (1/3) * (-100) + (2/3) * 100 = 33.33
Therefore, regardless of what the Inspector chooses, the Owner's expected payoff is the same (33.33). The Owner does not have a better option than waiting for the Inspector to choose container B.
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As an estimation we are told £3 is €4.
Convert £27 to euros
What is the 15th term of the sequence 20, 16, 12, 8, 4, ...?
A. -48
B. -40
C. -36
D-32
Answer:
C -36
Step-by-step explanation:
Worth 60 points for a rapid reply- find the area of each regular polygon. Answers are rounded to the nearest whole number.
The area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.
How to calculate for the area of the polygonArea of regular polygon = 1/2 × apothem × perimeter
perimeter = (s)side length of octagon × (n)number of side.
apothem = s/[2tan(180/n)].
11 = s/[2tan(180/12)]
s = 11 × 2tan15
s = 5.8949
perimeter = 5.8949 × 12 = 70.7388
Area of dodecagon = 1/2 × 11 × 70.7388
Area of dodecagon = 389.0634 in²
Area of pentagon = 1/2 × 5.23 × 7.6
Area of pentagon = 19.874 in²
Therefore, the area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.
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what is 2(x+6)-6x in simplest form
Answer:
-4x + 12
Step-by-step explanation:
2(x+6)-6x
2x + 12 - 6x
combine llike terms
2x - 6x = -4x
-4x + 12
Answer:
2(x+6)-6x=-4x+12
Step-by-step explanation:
So how I got that was I expanded 2(x+6): 2x+12 so I got 2x+12-6x
I simplified 2x+12-6x and I got -4x+12
: Ram lived in a small village. When he left for a college in a city, the population of his village was 840. When he came back, the , population had grown by 5%. What was the nopulation he found?
Answer:
882
Step-by-step explanation:
840 : 100 x 105 = 882
PLEASE HELP DUE IN 1 HOUR
Answer:
it is 6/5
Step-by-step explanation:
Help me with this please
Answer: (4 , 2.5)
5 + 3 / 2 = 4
3 + 2 / 2 = 2.5
What is the minimum possible value of a European call if S = 52;
K = 50, r (annual rate of interest) = 24% and time remaining to
maturity is 3 months? (10 pts)
Note: Use simple rate of interes
The minimum possible value of the European call option is approximately 2.8752.
Given the parameters S = 52 (current stock price), K = 50 (strike price), r = 24% (annual interest rate), and a time to maturity of 3 months, we can calculate the minimum call option value.
The Black-Scholes formula for European call option pricing is as follows:
C = S * N(d1) - K * e^(-r*T) * N(d2)
Where:
C = Call option price
S = Current stock price
N = Cumulative standard normal distribution function
d1 = (ln(S/K) + (r + σ^2/2) * T) / (σ * sqrt(T))
d2 = d1 - σ * sqrt(T)
K = Strike price
r = Annual interest rate
T = Time to maturity (in years)
e = Euler's number (approximately 2.71828)
σ = Implied volatility of the underlying asset
Using the provided values, we can calculate the minimum call option value as follows:
d1 = (ln(52/50) + (0.24 + 0^2/2) * (3/12)) / (0.24 * sqrt(3/12))
= (ln(1.04) + 0.12 * 0.25) / (0.24 * 0.1443)
= (0.0392 + 0.03) / 0.0346
= 1.7507
d2 = 1.7507 - 0.24 * sqrt(3/12)
= 1.7507 - 0.24 * 0.1443
= 1.7507 - 0.0346
= 1.7161
N(d1) = N(1.7507) ≈ 0.9599 (using standard normal distribution table)
N(d2) = N(1.7161) ≈ 0.9569 (using standard normal distribution table)
C = 52 * 0.9599 - 50 * e^(-0.24 * (3/12)) * 0.9569
= 49.9152 - 50 * e^(-0.06) * 0.9569
≈ 49.9152 - 50 * 0.9408
≈ 49.9152 - 47.040
≈ 2.8752
Therefore, the minimum possible value of the European call option is approximately 2.8752.
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HELP ME PLEASE!!!!!!
the answer is d (the last one) 1/6.
i hope this helps.
Answer:
C
Step-by-step explanation:
Because their's 3 with 2 shaded in
Need help!!!!!
solve the system x+y=5 -2x+4y=8
a.(1,4)
b.(5,1)
c.(2,3)
d.(5,1)
Solve the system x+y=5 -2x+4y=8 then the value = (2,3) and x= 2 , y= 3 Given details in the question are as follows :
x+y=5
-2x+4y=8
By substitution method :
x= 5-y..(1)
-2x=8-4y..(2)
-2(5-y) = 8 - 4y
-10 +2y = 8 -4y
-10-8 = -4y -2y
-18 = -6y
2 =y
now put the value of y in equation (1)
x+y=5
x+2=5
x=5-2
x=3
solve the system x+y=5 -2x+4y=8 then the value = (2,3) and x= 2 , y= 3.
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A cube has a face with an area of 64 square inches. What is the surface area of the cube?
96 inch
V
=
64
c
u
b
i
c
i
n
c
h
e
s
Let us suppose
a
is the side length of the given cube:
a
3
=
64
c
u
b
i
c
i
n
c
h
e
s
a
=
(
64
)
1
3
a
=
4
i
n
c
h
e
s
Now the surface area of the cube:
S
=
6
a
2
=
6
(
4
)
2
=
6
(
16
)
=
96
i
n
c
h
2
What is 1 with an exponent of 0?
Answer:
1
Step-by-step explanation:
Anything (besides 0) to the 0 power is 1.
The stock market rose and fell over a
period of five days:
9. 8,-3. 5, 20. 5, 8. 6, -7. 7
Overall what was the net change in the
market?
Answer:
If your stock gains over 20% from the ideal buy point within 3 weeks of a proper breakout, hold it for at least 8 weeks.
Step-by-step explanation:
the money doesn't get redistributed to someone else.
If we take a simple random sample of size n=500 from a population of size 5,000,000, the variability of our estimate will be (a) much less than the variability for a sample of size n=500 from a population of size 50,000,000 . (b) slightly less than the variability for a sample of size n=500 from a population of size 50,000,000 . (c) about the same as the variability for a sample of size n=500 from a population of size 50,000,000 . (d) slightly greater than the variability for a sample of size n=500 from a population of size 50,000,000 . (e) much greater than the variability for a sample of size n=500 from a population of size 50,000,000 .
If we take a simple random sample of size n=500 from a population of size 5,000,000, the variability of our estimate will be (c) about the same as the variability for a sample size n=500 from a population of size 50,000,000.
The variability of an estimate primarily depends on the sample size (n) rather than the population size. Since both scenarios have a sample size of 500, the variability will be approximately the same.
The correct answer is (d) slightly greater than the variability for a sample size n = 500 from a population of size 50,000,000. This is because the larger the population size, the smaller the sampling variability. In other words, if we take a sample of the same size from a larger population, there will be more variability due to the increased number of potential outcomes. However, the difference in variability between a population size of 5,000,000 and 50,000,000 is not significant enough to make a substantial impact on the estimate.
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plsss helppp i have 1hr left
What is the value of x in the equation *x - y = 30, when y = 15?
O 4
8
O 80
O 200
Answer:
Is there an option of 45
Step-by-step explanation:
x-15=30
so +15
x=45
Which would prove that ab ≅ ac? converse of the isosceles triangle theorem substitution definition of congruency converse of the triangle parts relationship theorem
From the AAS property of congruency the side ab≅ac in the isosceles triangle.
What is the congruency of the triangle?Congruency generally shows the similarities between two triangles or any other shape for the similarity of the two shapes they should have any three properties same like their three sides, Three angles or one angle two sides and so on.
Now for an Isosceles triangle abc given in the figure
\(\angle bad=\angle cad\)
\(\angle abd=\angle acd\)
\(ad=ad\) (common side)
So from the AAS property, the triangle \(\Delta bad=\Delta acd\) are congruence
The side ab will also be equal to the side ac.
So from the AAS property of congruency is the side ab≅ac in the isosceles triangle.
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Answer:
The answer would be "A". Converse of the isosceles triangle theorem.
Step-by-step explanation:
You're Welcome :)
The first three terms of a geometric sequence are as follows.
-2,10 ,-50
Find the next two terms of this sequence.
Give exact values (not decimal approximations).
Answer:
Can you rephrase the question so I can get a better explanation of what you're trying to ax me
If EB = 5, find the value of CD.
3
CD = [?]
Enter
Answer: 10
Step-by-step explanation:
AB = 2EB
AB=CD
Due to that
Cd = 2EB therefore
CD = 10
The value of CD is 10.
What is perpendicular?Perpendicular lines are lines that intersect at a right (90 degrees) angle.
Given:
EB= 5
As, OE is perpendicular to AB
AB = 2EB
Also, AB=CD
so, CD= 2 EB
CD = 2*5
CD= 10
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What is the measure of XYZ?
6/7x+15-8=31
Can someone please help me
Topology question. Answer only subpart a. Need Asap.
3. Let (X, Jx) and (Y, Ty) be topological spaces defined as follows: X = {D, O, R, K} Tx = {Ø, {0}, {D, O}, {O, R}, {D, O, R}, X} Y = {M, A, T, H} Jy = {0, {M}, {M, A}, {M, A, T}, Y} (a) Let E= {0, K
Given the topological spaces X = {D, O, R, K} with the topology Tx and Y = {M, A, T, H} with the topology Jy, we are asked to determine whether the set E = {0, K} is open in X and open in Y.
To determine whether the set E = {0, K} is open in the topological spaces X and Y, we need to check if E belongs to the respective topologies, Tx and Ty.
In X, the topology Tx is given by: Tx = {Ø, {0}, {D, O}, {O, R}, {D, O, R}, X}. We can see that E = {0, K} is not explicitly listed in Tx. Therefore, E is not open in X since it does not belong to the topology.
In Y, the topology Ty is given by: Jy = {0, {M}, {M, A}, {M, A, T}, Y}. Again, E = {0, K} is not explicitly listed in Ty. Hence, E is not open in Y as it does not belong to the topology.
In both cases, the set E = {0, K} is not open in the respective topological spaces X and Y because it is not a member of the defined topologies.
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if erica walks at an average speed of 2.88 miles per hour,how long will it take her to walk 7.2 miles
Answer: It will take 2.5 hours for her to walk 7.2 miles
Step-by-step explanation:
Divide the total mile by the number of miles per hour
7.2/2.88=2.5
since it takes an hour walk of 2.88 miles per hour, multiply 2.5 by 1
2.5*1=2.5
It will take 2.5 hours for her to walk 7.2 miles
The tire of a car has a radius of 10.5 inches. How far will the car travel for 200 revolutions? Use
22/7 as an approximation for it.
Answer:
The car will travel approximately 13200 inches
Step-by-step explanation:
Notice that in one revolution, the car travels exactly the length of the tire's circumference, that is: \(2\,\pi\,R\)
Then, in 200 revolutions the car will travel 200 times that amount:
\(200\,(2\,\pi\,R)=400\ \pi\,R\)
So for the given dimension of the tire, and using the approximation \((\pi\approx22/7)\), this distance would be:
\(400\ \pi\,R=400\,\,\frac{22}{7} \,\,10.5\,\,in=13200\,\,in\)
PLZZZ I NEED HELPP THANK YOU SO MUCH
Answer: A.) B.) D.)
Step-by-step explanation:
It's logic. If you know multiplication it's easy. It's okay I'm horrible at math.
the sample proportion is always included in the confidence interval for population proportions. is this surprising?
It is not surprising that the sample proportion is always included in the confidence interval, as the sample proportion is considered as the estimate of the confidence interval.
Given a confidence interval what are the point estimate of the population mean and the margin of error?A confidence interval has two bounds, a lower bound and an upper bound.
A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.
The margin of error is the difference between the two bounds, divided by 2.
The point estimate is the sample proportion for a confidence interval of proportions, hence it is not surprising that the sample proportion is always included in the confidence interval for population proportions.
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